Why do women have sex? We find out, using the YSEX? questionnaire . Also, how to stop the ‘thin ideal’ messing with our minds. And forget St...

Killing the 'thin ideal'. Jan 2015

Wednesday, January 28, 2015
Rob
11 Comments

Why do women have sex? We find out, using the YSEX? questionnaire. Also, how to stop the ‘thin ideal’ messing with our minds. And forget Star Wars - it’s time for Sperm Wars: are men turned on by pornography that depicts ‘sperm competition’?

11 comments:

Thanks for the comment. Although I think men's preferences have something to do with it, we have paid far too little attention to the female-female interactions that can shape what women think is attractive. For example, it is becoming clearer and clearer that women's purchasing decisions (especially when it comes to fashion) are about signalling to other women, and not to men. The same could well be true with thinness.

Thanks, and sorry for not posting the transcript yet. Because I have done so many episodes, it is taking me a while to go through my backlog and post every script. But they will all be there eventually!

Since you requested, I have posted the scripts for this episode. Links above.

Hey, Bumface. I am glad that you have a life plan, but it might be possible to pick a few holes in this. Having lots of offspring may not be the best option as you will not be able to invest in them to the same extent as you would a small family. I mean, it works for jellyfish, but...

According to the Binford anthropological statistics the age girls get married off clusters around 14 so it seems that actually is very good strategy.

http://i.imgur.com/XjwuTTz.png

Putting aside our modern taboos over minor attraction etc and looking at it objectively, if girls in prehistory were typically chosen for marriage at about 12-16 (as they were on the verge of reproductive age) wouldn't we expect girls to have evolved to be the most attractive at that age to get male attention?

It depends at what age women would have paired up in ancestral hunter-gatherer societies. It's not my area of expertise, but I think modern hunter-gatherers tend to be serially monogamous, with people pairing up and splitting up at all ages. Obviously mate value changes for men and women over their lifetimes, so the age at which women 'marry' depends will depend on the age of their mates.

I dunno, it seems men have evolved to choose females more for long-term than medium-term relationships.

In a system of serial monogamy wouldn't it best to go for females who have already reproduced and proven their fertility and mothering abilities? Because you're only pairing up temporarily you want a female who knows what she's doing. I think in serially monogamous bird species the males have been observed to prefer the females who have already reproduced. But the males in our species are turned off by the physical signs a female has already started reproducing such as stretch marks and droopy boobs. Men seem to prefer young females who have no physical signs of prior reproduction (a skinny tight waist is one important sign) and still have all their fertile years remaining. This is exactly what we'd expect if men have evolved to try to acquire females for long-term relationships. It doesn't always work out and they may get divorced after a few years but, on average, men who acquire virgin females get more offspring from them since they have more fertile years remaining (or eggs in their ovaries, if you look at like that). At least this is how I imagine it worked out in the ancestral environment. It may work out very different in modern societies.